Discover / hello-world-x402.vercel.app

hello-world-x402.vercel.app

■ Challenge detected

Returns "Hello World" after payment verification

x402
Base
USDC

Listed price: $0.001
Challenge detected: 10 of the last 10 checks
Median response: 60 ms
Last checked: 17 Oct, 09:26 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://hello-world-x402.vercel.app/hello
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

3 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://hello-world-x402.vercel.app

GET/hello$0.001Returns "Hello World" after payment verification
GET/greet$0.001Returns personalized greeting - UPDATED SCHEMA v2
GET/world$0.001Returns "World Hello" - UPDATED TEST v2.0

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 3 of 3 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/hello-world-x402.vercel.app

Recent checks

30 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
17 Oct, 09:26 UTC	Challenge detected	402	199ms
16 Oct, 08:13 UTC	Challenge detected	402	47ms
14 Oct, 23:56 UTC	Challenge detected	402	60ms
13 Oct, 14:18 UTC	Challenge detected	402	52ms
11 Oct, 12:57 UTC	Challenge detected	402	87ms
10 Oct, 00:46 UTC	Challenge detected	402	181ms
8 Oct, 21:32 UTC	Challenge detected	402	54ms
7 Oct, 18:39 UTC	Challenge detected	402	48ms
6 Oct, 16:01 UTC	Challenge detected	402	59ms
30 Sept, 05:03 UTC	Challenge detected	402	583ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 09:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for hello-world-x402.vercel.app?

Its listed price is $0.001.

What payment terms does hello-world-x402.vercel.app advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is hello-world-x402.vercel.app listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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